相关实验视频
Updated: Jun 16, 2026

07:34
FISH for Pre-implantation Genetic Diagnosis
Published on: February 23, 2011
对于印记障碍的产前检测:一个实验室的角度.
Jasmin Beygo1, Silvia Russo2, Pierpaola Tannorella2
1Institute of Human Genetics, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
Prenatal diagnosis
|June 21, 2023
概括
印记障碍 (ImpDis) 由于重叠的症状和马赛克主义,存在诊断挑战. 产前检测需要仔细考虑限制和临床指导.
科学领域:
- 遗传学 是一个遗传学.
- 发展生物学 发展生物学
- 临床诊断 临床诊断 临床诊断
背景情况:
- 印记障碍 (ImpDis) 是由印记基因中的分子干扰引起的先天性综合征.
- 这些疾病表现为单基因,原始基因特定基因表达,具有独特的遗传部位和临床征兆.
- 重叠的临床特征和非特异性的产前症状使诊断复杂化.
研究的目的:
- 为了应对印记障碍分子测试策略的挑战.
- 突出与ImpDis产前诊断相关的困难.
- 为诊断工作和临床管理提供指导.
主要方法:
- 对印记障碍分子特征的审查.
- 对诊断挑战的分析,包括 (epi) 基因马赛克主义.
- 评估产前检测的局限性和胎儿成像效用.
主要成果:
- 印记障碍有共同的重叠特征,使得产前诊断变得困难.
- 对于准确的产前检测, (后遗传) 马赛克主义带来了重大挑战.
- 假阴性结果是可能的,强调对管理决策的胎儿成像的依赖.
结论:
- 由于分子和临床因素,对印记障碍的产前检测是复杂的.
- 胎儿成像对于怀孕管理决策至关重要.
- 在开始产前分子测试之前,临床医生,遗传学家和家庭之间的合作讨论是必不可少的.
相关概念视频
Imprinting
9.8K
Behavioral imprinting is observed in some newborn animals and occurs when they develop strong and specific attachments to another animal (usually a parent) following brief, early-life exposures. Offspring imprint onto parents within a brief period after birth or hatching; this time window is called the critical period. Once imprinting occurs, the bond established between the parents and their offspring is usually long-lasting.
9.8K
Genomic Imprinting and Inheritance
34.7K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
34.7K

